/**
* @brief Reset an I2C bus.
*
* Reset is accomplished by clocking out pulses until any hung slaves
* release SDA and SCL, then generating a START condition, then a STOP
* condition.
*
* @param dev I2C device
*/
void i2c_bus_reset(const i2c_dev *dev) {
/* Release both lines */
i2c_master_release_bus(dev);
/*
* Make sure the bus is free by clocking it until any slaves release the
* bus.
*/
while (!gpio_read_bit(sda_port(dev), dev->sda_pin)) {
/* Wait for any clock stretching to finish */
while (!gpio_read_bit(scl_port(dev), dev->scl_pin))
;
delay_us(10);
/* Pull low */
gpio_write_bit(scl_port(dev), dev->scl_pin, 0);
delay_us(10);
/* Release high again */
gpio_write_bit(scl_port(dev), dev->scl_pin, 1);
delay_us(10);
}
/* Generate start then stop condition */
gpio_write_bit(sda_port(dev), dev->sda_pin, 0);
delay_us(10);
gpio_write_bit(scl_port(dev), dev->scl_pin, 0);
delay_us(10);
gpio_write_bit(scl_port(dev), dev->scl_pin, 1);
delay_us(10);
gpio_write_bit(sda_port(dev), dev->sda_pin, 1);
}
/* Read pin mux function: 0= pin used as GPIO, 1= pin used for muxed function*/
int pnx4008_gpio_read_pin_mux(unsigned short pin)
{
int gpio = GPIO_BIT_MASK(pin);
int ret = -EFAULT;
gpio_lock();
if (GPIO_ISBID(pin)) {
ret = gpio_read_bit(PIO_MUX_STATE, gpio_to_mux_map[gpio]);
} else if (GPIO_ISOUT(pin)) {
ret = gpio_read_bit(PIO_MUX_STATE, outp_to_mux_map[gpio]);
} else if (GPIO_ISMUX(pin)) {
ret = gpio_read_bit(PIO_MUX_STATE, gpio);
}
gpio_unlock();
return ret;
}
int get_gpio(int pin)
{
int value;
gpio_set_dir_in(pin);
gpio_read_bit(pin, &value);
return value;
}
/**
* Get state of sleep switch
* @return 1 if in Power up position
* @return 0 if in Sleep position
*/
bool switch_state() {
int wakeup = gpio_read_bit(PIN_MAP[MANUAL_WAKEUP_GPIO].gpio_device,
PIN_MAP[MANUAL_WAKEUP_GPIO].gpio_bit);
if (wakeup != 0)
return SWITCH_SLEEP;
else
return SWITCH_POWERUP;
}
uint32 digitalRead(uint8 pin) {
if (pin >= BOARD_NR_GPIO_PINS) {
return 0;
}
return gpio_read_bit(PIN_MAP[pin].gpio_device, PIN_MAP[pin].gpio_bit) ?
HIGH : LOW;
}
U8 is_usb_connected(usb_attr_t *attr)
{
if (usb_attr == NULL || (usb_attr && usb_attr->use_present_pin == 0))
return usb_connected;
else
{
return gpio_read_bit(usb_attr->present_port, usb_attr->present_pin);
}
}
int receiverA_listenForIR(void) {
receiverA_currentPulse = 0;
while (1) {
uint16 highPulse, lowPulse; // temporary storage timing
highPulse = lowPulse = 0; // start out with no pulse length
while(gpio_read_bit(RECEIVER_A_PORT, RECEIVER_A_PIN)){
// pin is still HIGH
// count off another few microseconds
highPulse++;
delay_us(RESOLUTION);
// If the pulse is too long, we 'timed out' - either nothing
// was received or the code is finished, so print what
// we've grabbed so far, and then reset
if ((highPulse >= MAXPULSE) && (receiverA_currentPulse != 0)) {
return receiverA_currentPulse;
}
}
// we didn't time out so lets stash the reading
receiverA_pulses[receiverA_currentPulse][0] = highPulse;
// same as above
//while (! (IRpin_PIN & _BV(IRpin))) {
while(!(gpio_read_bit(RECEIVER_A_PORT, RECEIVER_A_PIN))){
// pin is still LOW
lowPulse++;
delay_us(RESOLUTION);
if ((lowPulse >= MAXPULSE) && (receiverA_currentPulse != 0)) {
return receiverA_currentPulse;
}
}
receiverA_pulses[receiverA_currentPulse][1] = lowPulse;
// we read one high-low pulse successfully, continue!
receiverA_currentPulse++;
if (receiverA_currentPulse > WANTED_PULSES){
return 0;
}
}
}
static int sh_gpio_get_value(struct pinmux_info *gpioc, unsigned gpio)
{
struct pinmux_data_reg *dr = NULL;
int bit = 0;
if (!gpioc || get_data_reg(gpioc, gpio, &dr, &bit) != 0)
return -1;
return gpio_read_bit(dr, bit);
}
static void ps_button(void *args)
{
signal = 0;
for (;;) {
if (gpio_read_bit(USR_BUT_PORT, USR_BUT_PIN)) {
// os_log(LOG_INFO, "%s - pressed.\n", __func__);
signal = 1;
}
os_process_sleep(10);
}
}
/* Read GPIO pin direction: 0= pin used as input, 1= pin used as output*/
int pnx4008_gpio_read_pin_direction(unsigned short pin)
{
int gpio = GPIO_BIT_MASK(pin);
int ret = -EFAULT;
gpio_lock();
if (GPIO_ISBID(pin) || GPIO_ISRAM(pin)) {
ret = gpio_read_bit(PIO_DRV_STATE, gpio);
}
gpio_unlock();
return ret;
}
/**
* @brief Reset an I2C bus.
*
* Reset is accomplished by clocking out pulses until any hung slaves
* release SDA and SCL, then generating a START condition, then a STOP
* condition.
*
* @param dev I2C device
*/
void i2c_bus_reset(i2c_dev *dev) {
//unsigned clock_count;
//unsigned stretch_count;
i2c_deinit(dev);
/* Release both lines */
i2c_master_release_bus(dev);
/*
* Make sure the bus is free by clocking it until any slaves release the
* bus.
*/
while (!gpio_read_bit(dev->gpio_port, dev->sda_pin)) {
/* Wait for any clock stretching to finish */
while (!gpio_read_bit(dev->gpio_port, dev->scl_pin))
;
delay_us(10);
/* Pull low */
gpio_write_bit(dev->gpio_port, dev->scl_pin, 0);
delay_us(10);
/* Release high again */
gpio_write_bit(dev->gpio_port, dev->scl_pin, 1);
delay_us(10);
}
/* Generate start then stop condition */
gpio_write_bit(dev->gpio_port, dev->sda_pin, 0);
delay_us(10);
gpio_write_bit(dev->gpio_port, dev->scl_pin, 0);
delay_us(10);
gpio_write_bit(dev->gpio_port, dev->scl_pin, 1);
delay_us(10);
gpio_write_bit(dev->gpio_port, dev->sda_pin, 1);
i2c_init(dev, 0, I2C_400KHz_SPEED);
}
/* Write Value to output */
int pnx4008_gpio_write_pin(unsigned short pin, int output)
{
int gpio = GPIO_BIT_MASK(pin);
int ret = -EFAULT;
gpio_lock();
if (GPIO_ISOUT(pin)) {
printk( "writing '%x' to '%x'\n",
gpio, output ? PIO_OUTP_SET : PIO_OUTP_CLR );
ret = gpio_set_bit(output ? PIO_OUTP_SET : PIO_OUTP_CLR, gpio);
} else if (GPIO_ISRAM(pin)) {
if (gpio_read_bit(PIO_DRV_STATE, gpio) > 0)
ret = gpio_set_bit(output ? PIO_SDOUTP_SET :
PIO_SDOUTP_CLR, gpio);
} else if (GPIO_ISBID(pin)) {
if (gpio_read_bit(PIO_DRV_STATE, gpio) > 0)
ret = gpio_set_bit(output ? PIO_OUTP_SET :
PIO_OUTP_CLR, gpio);
}
gpio_unlock();
return ret;
}
void cmd_magread(char *line) {
gpio_set_mode (PIN_MAP[41].gpio_device,PIN_MAP[41].gpio_bit, GPIO_OUTPUT_PP); // MAGPOWER
gpio_set_mode (PIN_MAP[29].gpio_device,PIN_MAP[29].gpio_bit, GPIO_INPUT_PU); // MAGSENSE
// Power up magsense
gpio_write_bit(PIN_MAP[41].gpio_device,PIN_MAP[41].gpio_bit,1);
// wait...
delay_us(1000);
// Read magsense
int magsense = gpio_read_bit(PIN_MAP[29].gpio_device,PIN_MAP[29].gpio_bit);
char magsenses[50];
sprintf(magsenses,"%u\r\n",magsense);
serial_write_string(magsenses);
}
int receiverA_listenSignal(void){
if(gpio_read_bit(RECEIVER_A_PORT, RECEIVER_A_PIN) == 0){
receiverA_numberPulses = receiverA_listenForIR();
receiverA_playerNumber = receiverA_interpretCode();
//In theory, sets the player number to zero if the number of pulses does not fit with criteria.
if((receiverA_numberPulses > WANTED_PULSES)||(receiverA_numberPulses < (WANTED_PULSES-1))){
receiverA_playerNumber = 0;
}
return receiverA_playerNumber;
} else {
return 0;
}
}
unsigned long pnx4008_gpio_read_pin(unsigned short pin)
{
unsigned long ret = -EFAULT;
int gpio = GPIO_BIT_MASK(pin);
gpio_lock();
if (GPIO_ISOUT(pin)) {
ret = gpio_read_bit(PIO_OUTP_STATE, gpio);
} else if (GPIO_ISRAM(pin)) {
if (gpio_read_bit(PIO_DRV_STATE, gpio) == 0) {
ret = gpio_read_bit(PIO_SDINP_STATE, gpio);
}
} else if (GPIO_ISBID(pin)) {
ret = gpio_read_bit(PIO_DRV_STATE, gpio);
if (ret > 0)
ret = gpio_read_bit(PIO_OUTP_STATE, gpio);
else if (ret == 0)
ret =
gpio_read_bit(PIO_INP_STATE, gpio_to_inp_map[gpio]);
} else if (GPIO_ISIN(pin)) {
ret = gpio_read_bit(PIO_INP_STATE, gpio);
}
gpio_unlock();
return ret;
}
static irqreturn_t gpio_scankey_handler(int irq, void *dev_id)
{
unsigned int reg_tmp=0;
static unsigned int perkey = 0;
unsigned int reg_tmp1=0;
unsigned int reg_tmp2=0;
static int swresetrepeatcount=0,havevgarepeatcount =0;
WRITE_REG(TIMER_INTCLR_OFFSET,0x1);
mdelay(1);
reg_tmp=READ_REG(GPIO_5_READ_DATA);
reg_tmp1=gpio_read_bit(GPIO_0_BASE_ADDR,5);///READ_REG(GPIO_2_READ_DATA);vga input signal!!
reg_tmp2=gpio_read_bit(GPIO_2_BASE_ADDR,5);//READ_REG(GPIO_2_READ_DATA); sw reset button!!
if (reg_tmp2==0)
swresetrepeatcount++;
else
swresetrepeatcount = 0;
if (reg_tmp1==0)
havevgarepeatcount++;
else
havevgarepeatcount = 0;
if ((perkey != reg_tmp)) {
perkey = reg_tmp;
time_acculte1 = repkey_timeout +1;
} else if ((enable_repeatkey!=0)&&((reg_tmp &0x1f)!=0x1f)) {
time_acculte1+=2*TIMER_EXPIRES_TIME;
}
if((time_acculte1>repkey_timeout)&&((reg_tmp &0x1f)!=0x1f)){
reg_tmp = ((~reg_tmp)& 0x1f);
if (reg_tmp>=0x10) {
reg_tmp = reg_tmp-0x10;
}
key_value[tail]=reg_tmp;
tail++;
if(tail >200)
{
if((tail-head)<255)
{
memcpy(&key_value[0],&key_value[head],(tail-head));
tail=tail-head;
head=0;
}
else
{
memcpy(&key_value[0],&key_value[1],254);
tail=254;
head=0;
}
}
time_acculte1=0;
}
if (swresetrepeatcount >= 75){
key_value[tail]=16;
tail++;
if(tail >200)
{
if((tail-head)<255)
{
memcpy(&key_value[0],&key_value[head],(tail-head));
tail=tail-head;
head=0;
}
else
{
memcpy(&key_value[0],&key_value[1],254);
tail=254;
head=0;
}
}
swresetrepeatcount = 0;
}
if (havevgarepeatcount >= 15) {
key_value[tail]=0x20;
tail++;
if(tail >200)
{
if((tail-head)<255)
{
memcpy(&key_value[0],&key_value[head],(tail-head));
tail=tail-head;
head=0;
}
else
{
memcpy(&key_value[0],&key_value[1],254);
tail=254;
head=0;
}
}
havevgarepeatcount = 0;
}
// WRITE_REG(GPIO_5_WRITE_DATA,0xff);
return IRQ_HANDLED;
}
static void _74ls165_handler(unsigned long l)
{
static int times = 0;
static int circle = 0;
static int readtimes = 0;
static unsigned char value = 0x0;
//printk("jiffies:%x\n",jiffies);
//enable 1-7,to select the first chip
g_timer.expires = jiffies + 40;
add_timer(&g_timer);
gpio_dir_set_bit(0,2,0);
gpio_dir_set_bit(0,0,1);
gpio_dir_set_bit(0,1,1);
/*gpio模拟时钟*/
gpio_write_bit(0, 0, g_vlevel);
if(times%2 == 0)/*下降触发*/
{
/*采样*/
if((circle%SAMPLE_INTERVAL) == 0 )
{
gpio_write_bit(0, 1, 0);
//mdelay(SHAKE_PROOF_TIME);
}
else
{
gpio_write_bit(0, 1, 1);
}
if((circle%SAMPLE_INTERVAL) == 1)
{
readtimes = 8;
}
if(readtimes)
{
char tmp = gpio_read_bit(0,2);
value |= (tmp<<(readtimes-1));
readtimes -- ;
}
else
{
if(value != 0)
{
if(!IS_BUF_FULL(&g_value_buf))
{
g_value_buf.value[g_value_buf.write] = value;
UPDATE_WRITE(&g_value_buf);
}
}
value = 0;
// printk("g_value:0x%x\n",g_value);
}
circle++;
}
g_vlevel = !g_vlevel;
times ++;
}
void serial_process_command(char *line) {
if(in_displayparams) {
serial_displayparams_run(line);
in_displayparams = false;
}
if(in_setdevicetag) {
serial_setdevicetag_run(line);
in_setdevicetag = false;
}
if(in_setrtc) {
serial_setrtc_run(line);
in_setrtc = false;
}
if(in_setkeyval) {
serial_setkeyval_run(line);
in_setkeyval = false;
}
serial_write_string("\r\n");
if(strcmp(line,"HELLO") == 0) {
serial_write_string("GREETINGS PROFESSOR FALKEN.\r\n");
} else
if(strcmp(line,"LIST GAMES") == 0) {
serial_write_string("I'M KIND OF BORED OF GAMES, TURNS OUT THE ONLY WAY TO WIN IS NOT TO PLAY...\r\n");
} else
if(strcmp(line,"LOGXFER") == 0) {
serial_sendlog();
} else
if(strcmp(line,"DISPLAYPARAMS") == 0) {
serial_displayparams();
} else
if(strcmp(line,"HELP") == 0) {
serial_write_string("Available commands: HELP, LOGXFER, DISPLAYTEST, HELLO");
} else
if(strcmp(line,"DISPLAYTEST") == 0) {
display_test();
} else
if(strcmp(line,"LOGTEST") == 0) {
char stemp[100];
sprintf(stemp,"Raw log data\r\n");
serial_write_string(stemp);
uint8_t *flash_log = flashstorage_log_get();
for(int n=0;n<1024;n++) {
sprintf(stemp,"%u ",flash_log[n]);
serial_write_string(stemp);
if(n%64 == 0) serial_write_string("\r\n");
}
serial_write_string("\r\n");
log_data_t data;
data.time = 0;
data.cpm = 1;
data.accel_x_start = 2;
data.accel_y_start = 3;
data.accel_z_start = 4;
data.accel_x_end = 5;
data.accel_y_end = 6;
data.accel_z_end = 7;
data.log_type = UINT_MAX;
sprintf(stemp,"Log size: %u\r\n",flashstorage_log_size());
serial_write_string(stemp);
sprintf(stemp,"Writing test log entry of size: %u\r\n",sizeof(log_data_t));
serial_write_string(stemp);
flashstorage_log_pushback((uint8 *) &data,sizeof(log_data_t));
sprintf(stemp,"Log size: %u\r\n",flashstorage_log_size());
serial_write_string(stemp);
} else
if(strcmp(line,"VERSION") == 0) {
char stemp[50];
sprintf(stemp,"Version: %s\r\n",OS100VERSION);
serial_write_string(stemp);
} else
if(strcmp(line,"GETDEVICETAG") == 0) {
const char *devicetag = flashstorage_keyval_get("DEVICETAG");
if(devicetag != 0) {
char stemp[100];
sprintf(stemp,"Devicetag: %s\r\n",devicetag);
serial_write_string(stemp);
} else {
serial_write_string("No device tag set");
}
} else
if(strcmp(line,"SETDEVICETAG") == 0) {
serial_setdevicetag();
} else
if(strcmp(line,"READPRIVATEKEY") == 0) {
// serial_readprivatekey(); // removed for production
} else
if(strcmp(line,"WRITEPRIVATEKEY") == 0) {
// serial_writeprivatekey(); // maybe this should be removed for production?
} else
if(strcmp(line,"MAGREAD") == 0) {
gpio_set_mode (PIN_MAP[41].gpio_device,PIN_MAP[41].gpio_bit, GPIO_OUTPUT_PP); // MAGPOWER
gpio_set_mode (PIN_MAP[29].gpio_device,PIN_MAP[29].gpio_bit, GPIO_INPUT_PU); // MAGSENSE
// Power up magsense
gpio_write_bit(PIN_MAP[41].gpio_device,PIN_MAP[41].gpio_bit,1);
// wait...
delay_us(1000);
// Read magsense
int magsense = gpio_read_bit(PIN_MAP[29].gpio_device,PIN_MAP[29].gpio_bit);
char magsenses[50];
sprintf(magsenses,"%u\r\n",magsense);
serial_write_string(magsenses);
} else
if(strcmp(line,"WRITEDAC") == 0) {
dac_init(DAC,DAC_CH2);
int8_t idelta=1;
uint8_t i=0;
for(int n=0;n<1000000;n++) {
if(i == 254) idelta = -1;
if(i == 0 ) idelta = 1;
i += idelta;
dac_write_channel(DAC,2,i);
}
serial_write_string("WRITEDACFIN");
} else
if(strcmp(line,"TESTHP") == 0) {
gpio_set_mode (PIN_MAP[12].gpio_device,PIN_MAP[12].gpio_bit, GPIO_OUTPUT_PP); // HP_COMBINED
for(int n=0;n<100000;n++) {
gpio_write_bit(PIN_MAP[12].gpio_device,PIN_MAP[12].gpio_bit,1);
delay_us(100);
gpio_write_bit(PIN_MAP[12].gpio_device,PIN_MAP[12].gpio_bit,0);
delay_us(100);
}
} else
if(strcmp(line,"READADC") == 0) {
adc_init(PIN_MAP[12].adc_device); // all on ADC1
adc_set_extsel(PIN_MAP[12].adc_device, ADC_SWSTART);
adc_set_exttrig(PIN_MAP[12].adc_device, true);
adc_enable(PIN_MAP[12].adc_device);
adc_calibrate(PIN_MAP[12].adc_device);
adc_set_sample_rate(PIN_MAP[12].adc_device, ADC_SMPR_55_5);
gpio_set_mode (PIN_MAP[12].gpio_device,PIN_MAP[12].gpio_bit, GPIO_INPUT_ANALOG);
gpio_set_mode (PIN_MAP[19].gpio_device,PIN_MAP[19].gpio_bit, GPIO_INPUT_ANALOG);
gpio_set_mode (PIN_MAP[20].gpio_device,PIN_MAP[20].gpio_bit, GPIO_INPUT_ANALOG);
int n=0;
uint16 value1 = adc_read(PIN_MAP[12].adc_device,PIN_MAP[12].adc_channel);
uint16 value2 = adc_read(PIN_MAP[19].adc_device,PIN_MAP[19].adc_channel);
uint16 value3 = adc_read(PIN_MAP[20].adc_device,PIN_MAP[20].adc_channel);
char values[50];
sprintf(values,"PA6 ADC Read: %u\r\n",value1);
serial_write_string(values);
sprintf(values,"PC4 ADC Read: %u\r\n",value2);
serial_write_string(values);
sprintf(values,"PC5 ADC Read: %u\r\n",value3);
serial_write_string(values);
} else
if(strcmp(line,"SETMICREVERSE") == 0) {
gpio_set_mode (PIN_MAP[36].gpio_device,PIN_MAP[36].gpio_bit, GPIO_OUTPUT_PP); // MICREVERSE
gpio_set_mode (PIN_MAP[35].gpio_device,PIN_MAP[35].gpio_bit, GPIO_OUTPUT_PP); // MICIPHONE
gpio_write_bit(PIN_MAP[36].gpio_device,PIN_MAP[36].gpio_bit,1); // MICREVERSE
gpio_write_bit(PIN_MAP[35].gpio_device,PIN_MAP[35].gpio_bit,0); // MICIPHONE
serial_write_string("Set MICREVERSE to 1, MICIPHONE to 0\r\n");
} else
if(strcmp(line,"SETMICIPHONE") == 0) {
gpio_set_mode (PIN_MAP[36].gpio_device,PIN_MAP[36].gpio_bit, GPIO_OUTPUT_PP); // MICREVERSE
gpio_set_mode (PIN_MAP[35].gpio_device,PIN_MAP[35].gpio_bit, GPIO_OUTPUT_PP); // MICIPHONE
gpio_write_bit(PIN_MAP[36].gpio_device,PIN_MAP[36].gpio_bit,0); // MICREVERSE
gpio_write_bit(PIN_MAP[35].gpio_device,PIN_MAP[35].gpio_bit,1); // MICIPHONE
serial_write_string("Set MICREVERSE to 0, MICIPHONE to 1\r\n");
} else
if(strcmp(line,"TESTSIGN") == 0) {
serial_signing_test();
} else
if(strcmp(line,"PUBKEY") == 0) {
signing_printPubKey();
serial_write_string("\n\r");
} else
if(strcmp(line,"GUID") == 0) {
signing_printGUID();
serial_write_string("\n\r");
} else
if(strcmp(line,"KEYVALID") == 0) {
if( signing_isKeyValid() == 1 )
serial_write_string("uu_valid VALID KEY\r\n");
else
serial_write_string("uu_valid IMPROPER OR UNINITIALIZED KEY\r\n");
} else
if(strcmp(line,"LOGSIG") == 0) {
signing_hashLog();
serial_write_string("\n\r");
} else
if(strcmp(line,"LOGPAUSE") == 0) {
flashstorage_log_pause();
} else
if(strcmp(line,"LOGRESUME") == 0) {
flashstorage_log_resume();
} else
if(strcmp(line,"LOGCLEAR") == 0) {
serial_write_string("Clearing flash log\r\n");
flashstorage_log_clear();
serial_write_string("Cleared\r\n");
} else
if(strcmp(line,"KEYVALDUMP") == 0) {
serial_keyvaldump();
} else
if(strcmp(line,"KEYVALSET") == 0) {
serial_setkeyval();
} else
if(strcmp(line,"SETRTC") == 0) {
serial_setrtc();
} else
if(strcmp(line,"RTCALARM") == 0) {
serial_write_string("Alarm triggered for 10s\r\n");
rtc_set_alarm(RTC,rtc_get_time(RTC)+10);
}
serial_write_string("\r\n>");
}